Table.
Intrinsic Connectivity Networks Observed by Using Resting-State Functional MR Imaging
| ICA | Vertebra Level | Quadrants or Center | Craniocaudal Length (mm) |
|---|---|---|---|
| 1 | C1 | RV/RD | 3 |
| 2 | C1 | LV/LD | 6 |
| 3 | C1/C2 | CC | 9 |
| 4 | C1/C2, C3 | RV/RD, CC | 9, 3 |
| 5 | C1, C2, IDC3–4 | RV, RD, LD | 9, 6, 15 |
| 6 | C2 | LV/LD | 9 |
| 7 | C2 | CC | 9 |
| 8 | C2 | RV/RD | 9 |
| 9 | C2 | LV/CC | 12 |
| 10 | C2, IDC3–4 | LV, LD | 9, 3 |
| 11 | C2 | RV | 3 |
| 12 | C3 | RV/RD/CC | 9 |
| 13 | C2 | RV/LV | 9, 3 |
| 14 | IDC2–3 | LV/LD | 12 |
| 15 | C3 | CC | 6, 3 |
| 16 | C4 | CC | 3 |
Note.—The spinal cord is subdivided into five regions (the center of the cord [CC], the left and right dorsal horns [LD and RD], and the left and right ventral horns [LV and RV]). IDC2–3 and IDC3–4 are the intervertebral disks between C2 and C3 and between C3 and C4. The vertebra level and craniocaudal length of the spinal cord networks are listed.